The topological antiferromagnets, combining the characteristics of nontrivial topology and antiferromagnetism, arouse significant interests in modern spintronics [1]}, [2]}.
Antiferromagnetic materials are ideal platforms for spintronics applications because of their low susceptibility to external magnetic fields and vanishing stray field.
In addition, exceptional Berry curvatures of the electron bands in topological antiferromagnets can give rise to the intrinsic anomalous Hall effect [3]}, as strong as that observed in conventional ferromagnetic materials [4]}, [5]}, [6]}, [7]}.
Recently, the Kagome-type noncollinear antiferromagnetic compounds \(\mathrm {Mn_3X}\) , including the hexagonal compounds with X=Ge, Sn, and Ga, and
the cubic compounds with X=Ir and Pt, have attracted intensive studies [8]}, [9]}.
In particular, \(\mathrm {Mn_3Ge}\)  and \(\mathrm {Mn_3Sn}\)  were proposed to be antiferromagnetic Weyl semimetals [10]}, [11]}, [7]}, [4]}, [14]}. A variety of intriguing phenomena were observed, such as large anomalous Hall effect [6]}, [5]}, [17]}, [9]}, [19]}, [20]}, [21]},
spin Hall effect [22]}, [23]}, [8]}, anomalous Nernst effect [25]}, [26]}, [27]}, [28]}, and magneto-optical Kerr effect [29]}. Imaging and writing magnetic domains via the anomalous Nernst effect has also been realized [30]}.
